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Application of lithium lanthanum zirconium tantalum oxide as electrolyte material of solid oxide fuel cell

A solid oxide, electrolyte material technology, applied in fuel cells, circuits, electrical components, etc., can solve the problem of high operating temperature and achieve the effect of good output power density

Pending Publication Date: 2021-11-30
NANJING XIAOZHUANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Purpose of the invention: The present invention aims at the problem of high operating temperature of solid oxide fuel cells in the prior art, and provides a low-temperature solid oxide fuel cell using lithium lanthanum zirconium tantalum oxide as the electrolyte material

Method used

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  • Application of lithium lanthanum zirconium tantalum oxide as electrolyte material of solid oxide fuel cell
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  • Application of lithium lanthanum zirconium tantalum oxide as electrolyte material of solid oxide fuel cell

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Embodiment Construction

[0022] Such as figure 1 As shown, the structure of the fuel cell of the present invention is nickel foam-NCAL / LLZTO / NCAL-nickel foam. Among them, the cathode and anode materials are coated with NCAL3 on nickel foam 2, and the electrolyte material 1 is LLZTO (Li 6.4 La 3 Zr 1.4 Ta 0.6 o 12 ). Among them, the chemical formula of NCAL is: Ni 0.8 co 0.15 al 0.05 LiO 2-δ , NCAL can be purchased commercially directly. The electrolyte material LLZTO can also be purchased directly commercially.

[0023] The preparation method of foamed nickel-NCAL is: mix 10 grams of NCAL powder with 5mL terpineol to obtain a mixed material; add an adhesive polyvinylidene fluoride with a mass ratio of the mixed material of 5% to the mixed material, and fully grind to obtain a slurry material; the slurry is evenly coated on the foamed nickel to obtain the foamed nickel-NCAL.

[0024] Among them, the preparation method of the fuel cell is: the prepared anode and cathode foam nickel-NCAL and ...

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Abstract

The invention discloses application of lithium lanthanum zirconium tantalum oxide as an electrolyte material of a solid oxide fuel cell. The structure of the solid oxide fuel cell is foamed nickel-NCAL / LLZTO / NCAL-foamed nickel, wherein the ratio of the elements in the electrolyte material LLZTO is Li6.4La3Zr1.4Ta0.6O12; and the chemical formula of NCAL is Ni0.8Co0.15Al0.05LiO<2-delta>. The lithium lanthanum zirconium tantalum oxide is used as the electrolyte material of the fuel cell and can form a proton transmission channel in a mode that protons occupy lithium ion positions in a fuel cell operation atmosphere, so that the lithium lanthanum zirconium tantalum oxide is used as the electrolyte material of the fuel cell, and the fuel cell also has good output power density in a low-temperature section.

Description

technical field [0001] The invention relates to the application of lithium lanthanum zirconium tantalum oxide as electrolyte material of solid oxide fuel cell. Background technique [0002] Solid Oxide Fuel Cell (SOFC) is a device that uses electrochemical reactions to generate electricity. It does not have a Carnot cycle. Its efficiency is much higher than other power generation equipment. The main product is CO 2 and H 2 O. SOFC has high power generation efficiency (its own power generation efficiency is close to 60%, and the combined efficiency with a thermal turbine can reach more than 80%), high quality waste heat, and a wide range of fuel choices (natural gas, coal gas, biomass gas, methanol, etc.) , and does not require noble metal catalysts, has strong adaptability, and is a fuel cell with high application prospects. At present, it is mainly used in portable power supply, power station, data center, communication base station, distributed power supply and heating ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/1016
CPCH01M8/1016Y02E60/50
Inventor 陆玉正杨静静颜森林
Owner NANJING XIAOZHUANG UNIV
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